Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9926784 | Float-swing hydraulic support | Jianyun Hong, Jun Liu, Jiyun Zhao, Shiqi Chen, Liang Zhao | 2018-03-27 |
| 7717649 | Suspending hydraulic pillar | Jiyun Zhao, Qiguang Wang, Shiqi Chen, Jianwu Wang, Weimin Chen | 2010-05-18 |